import java.util.Scanner;
public class Cylinder {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.println("请输入圆柱底面半径：");
        int r = sc.nextInt();
        System.out.println("请输入圆柱体的高：");
        int h = sc.nextInt();
        System.out.println("该圆柱体的体积为：" + (r * r * 3.14 * h));
    }
  }